That is a very good question. I have driven a Tiara with ips, the thing was amazing, press a button and it stays in place so one person can untie the boat. I have also driven a 60 cruiser. the 60 is very easy to walk sideways because the props are so large. I have not driven a 40+ go fast, but I think one problem may be the prop walk with smaller diameter props may be a problem? Obviously I am not sure, but that could make it harder for the system to work. It sure would be sweet, the joystick drive makes maneuvering a joke, but it sure was fun.